LMV981IDCKRG4 Texas Instruments Integrated Circuit (SOT23 (6-Pin)) In Stock
The LMV981IDCKRG4 is a single-channel CMOS rail-to-rail operational amplifier from Texas Instruments with a 1.5 MHz gain-bandwidth product in a 6-pin SC-70 package. It operates on a 3 V single supply with rail-to-rail input and output capability and 74 dB typical CMRR. This miniature op-amp suits low-power portable sensor and audio applications requiring space-efficient signal conditioning.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- OBSOLETE
- Datasheet
- LMV981IDCKRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LMV981IDCKRG4?
- Rail-to-rail input and output operation on a 3 V single supply maximizes signal swing in battery-powered portable devices
- 1.5 MHz gain-bandwidth product in a 6-pin SC-70 package under 2 mm × 2 mm for ultra-compact signal conditioning designs
- 74 dB typical CMRR with internal frequency compensation simplifies single-supply filter and amplifier design without external compensation networks
What is LMV981IDCKRG4 used for?
The LMV981IDCKRG4 is designed for low-power portable electronics including wearable health monitors, handheld sensors, and IoT nodes where a 3 V single-supply rail-to-rail amplifier must fit in the smallest possible PCB footprint. It suits microphone pre-amplifiers, light sensor signal conditioners, and active filter stages in consumer devices where the 1.5 MHz GBW balances audio-frequency bandwidth with low quiescent current. The device also applies to battery management analog front-ends and linear regulator error amplifiers where the rail-to-rail output swing preserves control headroom near the supply rails.
What are the specifications of LMV981IDCKRG4?
| Pbfree Code | No |
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.075 µA |
| Bias Current-Max (IIB) @25C | 0.065 µA |
| Common-mode Reject Ratio-Min | 50dB |
| Common-mode Reject Ratio-Nom | 74dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 6000 µV |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e4 |
| Low-Bias | NO |
| Low-Offset | NO |
| Micropower | YES |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP5/6,.08 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TAPE AND REEL |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 0.4V/us |
| Supply Current-Max | 0.23mA |
| Supply Voltage Limit-Max | 5.5V |
| Supply Voltage-Nom (Vsup) | 2.7V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 1400 |
| Voltage Gain-Min | 4470 |
| Wideband | NO |
| Package | SOT23 (6-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the LMV981IDCKRG4 datasheet?
LMV981IDCKRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LMV981IDCKRG4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What gain-bandwidth product does the LMV981IDCKRG4 offer and how does it limit closed-loop bandwidth?
The LMV981IDCKRG4 has a 1.5 MHz gain-bandwidth product. In a closed-loop configuration with a gain of 10, the usable -3 dB bandwidth is approximately 150 kHz, which covers audio frequencies up to 20 kHz with more than 7× safety margin. For unity-gain buffers the full 1.5 MHz bandwidth is available, suitable for driving ADC inputs or passive filter stages in sensor acquisition chains.
Why is the rail-to-rail output of LMV981IDCKRG4 important for 3 V single-supply sensor designs?
On a 3 V supply, a non-rail-to-rail output amplifier may saturate 0.5 V to 1 V away from either rail, leaving only 1 V to 2 V of usable swing. The LMV981IDCKRG4's rail-to-rail output swings within millivolts of both 0 V and 3 V, nearly doubling the dynamic range available to a downstream 10-bit or 12-bit ADC and improving effective resolution by 1 full bit compared to a conventional output stage.
How compact is the SC-70 package of LMV981IDCKRG4 compared to a standard SOT-23 package?
The 6-pin SC-70 package measures approximately 2.0 mm × 2.1 mm with 0.65 mm pitch leads, occupying about 4.2 mm² of PCB area. A standard 5-pin SOT-23 package occupies roughly 8 mm², so the SC-70 saves nearly 50% of board space. This difference is significant in wearables and hearing aids where total PCB area may be under 200 mm².
What is the maximum input offset voltage of the LMV981IDCKRG4 and which applications can tolerate it?
The LMV981IDCKRG4 has a maximum input offset voltage of 6 mV at 25°C. This level is acceptable for audio amplifiers, LED driver feedback loops, and general sensor signal conditioning where absolute DC accuracy of better than 1% is not critical. For precision instrumentation requiring offset below 500 µV, a chopper-stabilized amplifier such as the OPA2189 would be a better choice, but LMV981 suits cost-sensitive consumer applications.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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